Protective suit against poisonous substances

ABSTRACT

A protective garment for enclosing and protecting the body of a wearer against poisonous gases or liquids. An outer non-permeable clothing layer is flexible but relatively stiff and has attached to the interior thereof an inner porous filter layer impregnated with an agent for neutralizing the poisonous substances. Ventilation openings are provided in the outer layer, said openings being covered by the inner porous layer and wherein a portion of the outer layer overlies the opening.

United States Patent 1191 Albrecht June 25, 1974 [54] PROTECTIVE SUITAGAINST POISONOUS 2,855,603 10/1952 Zito 2/2 3,292,179 12 196 Lacoro eta SUBSTANCES 3,431,133 3/1969 Braude et a1. 2/2 X 5] Inventor: G nnarbrecht, Moss, ay 3,586,596 6/1971 Ainsworth et a1. 2/2 x [73] Assignee:Belly-Hansen A/S, Moss, Norway FOREIGN PATENTS OR APPLICATIONS [22]Filed: Apr. 4, 1973 301,647 12/1928 Great Britain 2/DlG. 1 [2]] Appl-NOJ 347,659 Primary ExaminerAlfred R. Guest Attorney, Agent, orFirmLarson, Taylor & Hinds [30] Foreign Application Priority Data Apr.14, 1972 Norway 1334/72 [57] ABSTRACT A protective garment for enclosingand protecting the [52] us. C1. 2/2 y of a wearer gainst poisonous gasesor liquids. [51] Int. Cl A4ld 13/00 An outer n-p m able othing layer isflexible but [5 Fi ld f S h 2/2, DIG 1; 128/132 1), relatively stiff andhas attached to the interior thereof 128/132 R, 1425, 142 6, 142] aninner porous filter layer impregnated with an agent for neutralizing thepoisonous substances. entilation 5 References Cit d openings areprovided in the outer layer, said openings UNITED STATES PATENTS beingcovered by the inner porous layer and wherein a 2,399,027 4/1946Heribert 2/2 x porno of the outer layer overl'es the P 2,821,192 1/1958Monro 128/1427 X 3 Claims, 4 Drawing Figures PROTECTIVE SUIT AGAINSTPOISONOUS SUBSTANCES The present invention relates to a protective suitagainst poisonous substances as e.g. liquid or gaseous weapons aindustrial gas etc.

The object of the invention is to provide such a protective suit thateffectively protects against the poisonous substances, preventing themfrom penetrating to any part of the body. Simultaneously the suit isarranged so as to provide an effective ventilation between the interiorof the suit and the surrounding air.

According to the invention this is achieved by the fact that the suitconsists of an exteriour, nonpermeable clothing which is completelyresistant to the poisonous substances and an interior permanent orexchangeable porous filter-lining impregnated with agents forneutralizing the poisonous substances by destroying, absorbing orconverting the poisonous substances, which lining covers the interior ofthe suit completely or partly, and covered ventilation channelscommunicating with the surrounding atmosphere.

The invention will now be described in detail with reference to theaccompanying drawings which show a preferred embodiment of theinvention.

FIG. 1 is a front elevational view of a protective garment according tothe present invention.

FIG. 2 is a rear elevational view of a protective garment constructed inaccordance with the present invention.

FIG. 3 is an enlarged view of the upper portion of the protectivegarment with the outer layer pulled apart to reveal the interiorstructure thereof.

FIG. 4 is an enlarged cross-sectional view taken along line 4-4 of FIG.1.

A protective garment in the form of a suit 1 is uniform as will appearfrom FIGS. 1 or 2. The bodyencircling portion thus continues in theshape of a hood 2 having an opening 2' in front where a gas mask or awindow can be inserted. The lower portion 3 of the suit continuesdownwardly in the shape of legs 4, which can comprise means for tightlyclosing the same. The upper portion comprises breast pieces 6 and a backpiece 6',

the lower edge of which is free so that pockets opening downwards areformed. This is shown in a larger scale in FIG. 4. The lower portion 3of the suit is continued upwardly via plates 6 and 6' to form a shoulderportion via a tightly secured, e.g. welded, perforated panel 10. Saidpanel 10 can consist of a fine mesh fabric. Inside said perforated panel10 a filter 9 is arranged, preferably exchangeably secured as clearlyseen from FIG. 4. The edges 12 of the filter here facing the suit engagethe circumference of the panel 10 by the aid of a suitable connection,e.g. an adhesive fastening 11. A filter secured in this manner can berapidly exchanged when this might be necessary.

In FIG. 3 part of the upper suit portion is shown. The reference symbolsused in this figure correspond to those used in the other figures. Thusthe body facing side of filters 9-is shown in FIG. 3. To the left in thefigure the filter 9 is partly detached to show the perforated panel 10underlying the filter. The filter is secured along its edge by adhesion,e.g. by an adhesive fastening ll.

It will be understood that the invention can be modified in many wayswithin the scope of invention stated in the claim. Thus the choice oflocalization of ventilation openings covered by filter can be modifiedin relation to the shown and described arrangement. Inside the filters 9there can also be arranged a protective cloth if the filters themselveshave a comparatively loose structure. Preferably the suit is closed byan adhesive fastening as indicated in FIG. 1 at 8, but a double zipperor other forms of gas tight fastenings can be used.

I claim:

1. A protective gamient adapted to enclose the body of a wearer toprotect the wearer against poisonous gases and liquids, comprising: anouter non-permeable closing layer, said outer layer being flexible butrelatively stiff and being completely resistant to poisonous gases andliquids, an inner porous filter layer secured to the interior of theouter layer, said inner layer impregnated with an agent means forneutralizing the poisonous substances, and ventilation openings in theouter layer, said inner porous filter layer completely covering saidventilation openings, said ventilation openings being covered also bythe outer layer in a direction perpendicular to the plane of theopenings.

2. A protective garment according to claim 1, at least a portion of saidinner porous layer being removably secured to the interior of the outerlayer.

3. A protective garment according to claim 1, including a perforatedpanel covering the ventilation openings, the inner layer being removablysecured to the inner side of the panel.

1. A protective garment adapted to enclose the body of a wearer toprotect the wearer against poisonous gases and liquids, comprising: anouter non-permeable closing layer, said outer layer being flexible butrelatively stiff and being completely resistant to poisonous gases andliquids, an inner porous filter layer secured to the interior of theouter layer, said inner layer impregnated with an agent means forneutralizing the poisonous substances, and ventilation openings in theouter layer, said inner porous filter layer completely covering saidventilation openings, said ventilation openings being covered also bythe outer layer in a direction perpendicular to the plane of theopenings.
 2. A protective garment according to claim 1, at least aportion of said inner porous layer being removably secured to theinterior of the outer layer.
 3. A protective garment according to claim1, including a perforated panel covering the ventilation openings, theinner layer being removably secured to the inner side of the panel.